package com.atguigu.springcloud.alibaba.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.atguigu.springcloud.alibaba.entities.Payment;
import com.atguigu.springcloud.alibaba.myhandler.CustomerBlockHandler;
import com.atguigu.springcloud.alibaba.entities.CommonResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@Slf4j
public class RateLimitController {

    // 按资源名称限流
    @GetMapping("/byResource")
    @SentinelResource(value = "byResource", blockHandler = "handleException")
    public CommonResult byResource(){
        return new CommonResult(200, "按资源名称限流测试OK", new Payment(2020L,"serial001"));
    }
    // 兜底方法
    public CommonResult handleException(BlockException exception){
        return new CommonResult(444,exception.getClass().getCanonicalName() + "\t 服务不可用！");
    }

    // 按Url地址限流+后续处理
    @GetMapping("/rateLimit/byUrl")
    @SentinelResource(value = "byUrl")
    public CommonResult byUrl(){
        return new CommonResult(200, "按Url地址限流测试OK", new Payment(2020L,"serial002"));
    }

    // 客户自定义限流 CustomerBlockHandler
    @GetMapping("/rateLimit/customerBlockHandler")
    @SentinelResource(value = "customerBlockHandler",
            blockHandlerClass = CustomerBlockHandler.class, blockHandler = "handlerException2")
    public CommonResult customerBlockHandler(){
        return new CommonResult(200, "按客户自定义测试OK", new Payment(2020L,"serial003"));
    }
}
